If the modem is new or recently swapped, it may need manual activation. Xfinity Activation Portal from a mobile device using cellular data. Log in with your Xfinity ID and follow the prompts to "push" a signal to your device. 3. Use the Xfinity App for a "System Refresh" Xfinity App
In plain English: The chip’s directory listing is corrupt or incomplete. The software asked "Give me your EID," the chip responded with a file, but the file's internal checksum failed. r225 eid error